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Viewing changes to wp-includes/ID3/module.audio.ogg.php

  • Committer: Nick Moffitt
  • Date: 2015-01-15 11:04:26 UTC
  • mto: This revision was merged to the branch mainline in revision 3.
  • Revision ID: nick.moffitt@canonical.com-20150115110426-5stm1p14cfnxrtme
New Upstream Version 4.1

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wp-includes/ID3/module.audio.ogg.php
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/// getID3() by James Heinrich <info@getid3.org>               //
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//  available at http://getid3.sourceforge.net                 //
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//            or http://www.getid3.org                         //
 
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//          also https://github.com/JamesHeinrich/getID3       //
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/////////////////////////////////////////////////////////////////
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// See readme.txt for more details                             //
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/////////////////////////////////////////////////////////////////
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                                $info['audio']['bitrate_mode'] = 'vbr';
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                        }
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                } elseif (substr($filedata, 0, 7) == "\x80".'theora') {
 
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                        // http://www.theora.org/doc/Theora.pdf (section 6.2)
 
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                        $info['ogg']['pageheader']['theora']['theora_magic']             =                           substr($filedata, $filedataoffset,  7); // hard-coded to "\x80.'theora'
 
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                        $filedataoffset += 7;
 
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                        $info['ogg']['pageheader']['theora']['version_major']            = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  1));
 
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                        $filedataoffset += 1;
 
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                        $info['ogg']['pageheader']['theora']['version_minor']            = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  1));
 
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                        $filedataoffset += 1;
 
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                        $info['ogg']['pageheader']['theora']['version_revision']         = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  1));
 
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                        $filedataoffset += 1;
 
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                        $info['ogg']['pageheader']['theora']['frame_width_macroblocks']  = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  2));
 
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                        $filedataoffset += 2;
 
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                        $info['ogg']['pageheader']['theora']['frame_height_macroblocks'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  2));
 
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                        $filedataoffset += 2;
 
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                        $info['ogg']['pageheader']['theora']['resolution_x']             = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  3));
 
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                        $filedataoffset += 3;
 
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                        $info['ogg']['pageheader']['theora']['resolution_y']             = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  3));
 
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                        $filedataoffset += 3;
 
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                        $info['ogg']['pageheader']['theora']['picture_offset_x']         = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  1));
 
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                        $filedataoffset += 1;
 
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                        $info['ogg']['pageheader']['theora']['picture_offset_y']         = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  1));
 
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                        $filedataoffset += 1;
 
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                        $info['ogg']['pageheader']['theora']['frame_rate_numerator']     = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  4));
 
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                        $filedataoffset += 4;
 
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                        $info['ogg']['pageheader']['theora']['frame_rate_denominator']   = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  4));
 
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                        $filedataoffset += 4;
 
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                        $info['ogg']['pageheader']['theora']['pixel_aspect_numerator']   = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  3));
 
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                        $filedataoffset += 3;
 
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                        $info['ogg']['pageheader']['theora']['pixel_aspect_denominator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  3));
 
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                        $filedataoffset += 3;
 
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                        $info['ogg']['pageheader']['theora']['color_space_id']           = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  1));
 
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                        $filedataoffset += 1;
 
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                        $info['ogg']['pageheader']['theora']['nominal_bitrate']          = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  3));
 
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                        $filedataoffset += 3;
 
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                        $info['ogg']['pageheader']['theora']['flags']                    = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset,  2));
 
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                        $filedataoffset += 2;
 
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                        $info['ogg']['pageheader']['theora']['quality']         = ($info['ogg']['pageheader']['theora']['flags'] & 0xFC00) >> 10;
 
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                        $info['ogg']['pageheader']['theora']['kfg_shift']       = ($info['ogg']['pageheader']['theora']['flags'] & 0x03E0) >>  5;
 
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                        $info['ogg']['pageheader']['theora']['pixel_format_id'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x0018) >>  3;
 
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                        $info['ogg']['pageheader']['theora']['reserved']        = ($info['ogg']['pageheader']['theora']['flags'] & 0x0007) >>  0; // should be 0
 
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                        $info['ogg']['pageheader']['theora']['color_space']     = self::TheoraColorSpace($info['ogg']['pageheader']['theora']['color_space_id']);
 
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                        $info['ogg']['pageheader']['theora']['pixel_format']    = self::TheoraPixelFormat($info['ogg']['pageheader']['theora']['pixel_format_id']);
 
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                        $info['video']['dataformat']   = 'theora';
 
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                        $info['mime_type']             = 'video/ogg';
 
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                        //$info['audio']['bitrate_mode'] = 'abr';
 
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                        //$info['audio']['lossless']     = false;
 
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                        $info['video']['resolution_x'] = $info['ogg']['pageheader']['theora']['resolution_x'];
 
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                        $info['video']['resolution_y'] = $info['ogg']['pageheader']['theora']['resolution_y'];
 
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                        if ($info['ogg']['pageheader']['theora']['frame_rate_denominator'] > 0) {
 
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                                $info['video']['frame_rate'] = (float) $info['ogg']['pageheader']['theora']['frame_rate_numerator'] / $info['ogg']['pageheader']['theora']['frame_rate_denominator'];
 
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                        }
 
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                        if ($info['ogg']['pageheader']['theora']['pixel_aspect_denominator'] > 0) {
 
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                                $info['video']['pixel_aspect_ratio'] = (float) $info['ogg']['pageheader']['theora']['pixel_aspect_numerator'] / $info['ogg']['pageheader']['theora']['pixel_aspect_denominator'];
 
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                        }
 
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$info['warning'][] = 'Ogg Theora (v3) not fully supported in this version of getID3 ['.$this->getid3->version().'] -- bitrate, playtime and all audio data are currently unavailable';
 
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                } elseif (substr($filedata, 0, 8) == "fishead\x00") {
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                                } elseif (substr($filedata, 1, 6) == 'theora') {
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                                        $info['video']['dataformat'] = 'theora';
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                                        $info['error'][] = 'Ogg Theora not correctly handled in this version of getID3 ['.$this->getid3->version().']';
 
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                                        $info['video']['dataformat'] = 'theora1';
 
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                                        $info['error'][] = 'Ogg Theora (v1) not correctly handled in this version of getID3 ['.$this->getid3->version().']';
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                                        //break;
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                                } elseif (substr($filedata, 1, 6) == 'vorbis') {
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                return round($qval, 1); // 5 or 4.9
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        }
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}
 
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        public static function TheoraColorSpace($colorspace_id) {
 
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                // http://www.theora.org/doc/Theora.pdf (table 6.3)
 
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                static $TheoraColorSpaceLookup = array();
 
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                if (empty($TheoraColorSpaceLookup)) {
 
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                        $TheoraColorSpaceLookup[0] = 'Undefined';
 
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                        $TheoraColorSpaceLookup[1] = 'Rec. 470M';
 
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                        $TheoraColorSpaceLookup[2] = 'Rec. 470BG';
 
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                        $TheoraColorSpaceLookup[3] = 'Reserved';
 
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                }
 
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                return (isset($TheoraColorSpaceLookup[$colorspace_id]) ? $TheoraColorSpaceLookup[$colorspace_id] : null);
 
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        }
 
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        public static function TheoraPixelFormat($pixelformat_id) {
 
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                // http://www.theora.org/doc/Theora.pdf (table 6.4)
 
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                static $TheoraPixelFormatLookup = array();
 
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                if (empty($TheoraPixelFormatLookup)) {
 
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                        $TheoraPixelFormatLookup[0] = '4:2:0';
 
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                        $TheoraPixelFormatLookup[1] = 'Reserved';
 
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                        $TheoraPixelFormatLookup[2] = '4:2:2';
 
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                        $TheoraPixelFormatLookup[3] = '4:4:4';
 
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                }
 
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                return (isset($TheoraPixelFormatLookup[$pixelformat_id]) ? $TheoraPixelFormatLookup[$pixelformat_id] : null);
 
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        }
 
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}
 
 
b'\\ No newline at end of file'